Chemical-mixing apparatus.



J. R. MILSON. CHEMICAL MIXING APPARATUS.

APPLICATION FILED NOV. 13. I916.

Patented May 21,1918.

' I I I 2 I l5 4 ,23 g 7 v or mmko p b olzr KMZZS 022/ JOHN E. WILSON, DE WATETOWN, MASSACHUSETTS, ASSIGIIQR, GE ONE-HALF T JOHN J. BURNS, 015 BOSTON, MASSACHUSETTS.

GHEBtIICAL-HIXING AIPPTUS.

To all whom it may concern:

Be it known that 1, JOHN R. on, a citizen of the United States, and resident of Vfatertown, in the county of Middlesex and State of Massachusetts, have invented certain new and'useful Improvements in Chemical-Mixing Apparatus, of which the following is a specification.

' each container is provided. with a sight gage This invention relates to apparatus for and process of mixing together chemicals of diiferent natures, not ordinarily capable of ready mixing, and the object of the invention is to provide simple and effective means for connecting a plurality of different chemical containers to a common receptacle, apply heat to each container sufiicient to distil off its contents, and to provide means for preventing the discharge of such contents until a predetermined degree of heat or pressure has been generated in each container.

A further object of this invention is to provide. a chamber in which the gases are first received from the different I containers to be subsequently discharged into a receptacle. I

A still further object of the invention is the provision of means in the mixing chamher for agitating and mixing the difierent gases as distilled and while in a gaseous state.

The invention further consists in rovidmg means for cooling and condensmg the mixture after entering the receptacle.

With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described, and particularly pointed out in the appended claims.

In the accompanying drawings:

Figure 1- is a diagrammatic view illustrating my improved mixing apparatus the cooling chamber being partly broken away.

Fig. 2 is a sectional view showing one form of automatically operated relief valve.

In carrying out my invention, I have provided a plurality of containers 10 which carry the different chemicals. One side of 11' for determining the height of the liquid therein and a thermometer 12 is also provided to indicate the temperature to which the container is being heated. Each of these containers rests upon a base or frame 13 in which is located a gas burner 14- or other means for heating the container. The gas is Specification of Letters Patent.

Patentedll iay 211, 1913.

Application filed-November 13, 1916. Serial No. 130,932.

supplied to the burner through the pipe 15 and controlled by the valve 16, whereby the temperature in each container or tank may be raised as rapidly or as slowly as desired. This means of regulating the heat is found to be of great importance as the chemical solutions in the different containers often require different degrees of heat in order to bring them to the boiling or melting point and by the use of these adjustable valves the heat may be so regulated under each container that all may be brought. to the desired temperature at substantially the same time, so that all will discharge simultaneously into a common mixing chamber 21.

These containers are connected through pipes 17 18, 19 and 20, respectively to this mixing chamber and valves 22 are placed in each of these pipes which may be controlled by the adjustable weight 23 to hold baclg the pressure generated in the difierent receptacles until it is raised'to a predetermined degree after which these valves open automatically and permit the volatile contents of the containers to be carried over into the mixing chamber.

In some cases it'is foundin the distilling of certain groups of chemicals that it is necessary to provide means for agitating the gases in the mixing chamber in order to in sure a complete mixin of the same. @ne means of producing t is mixing efiect is herein illustrated, which comprises a shaft 24 set longitudinally in the mixing chamber and provided with paddles or fan blades 25, the whole being inserted through the plugged end 26, the shaft bein driven through the pulleys 27 and 28 by t e motor 29, whereby when the shaft is rapidly rotated the gases from opposite ends of the chamber are driven toward each other to insure a thorough mixing of the same.

This mixing chamber is connected by pipe 30 in the air-tight reservoir 31 which is pro vided with an outlet 32 near its bottom through which the cooled and condensed contents may be drawn.

In order to provide suitable means for quickl cooling the contents of this receptacle, have mounted the same in a casing 33, which is provided with a tight cover 34: secured in position by wing nuts 35. An inlet pipe 36 of this casing through which the coolmg water enters a d after circling around is screwed mto the upper portion accomplish this, I have by the valve'38 so that the passage of the gas fromthe-mixing chamberto the receptacle may be delayed if desired until the gases have been thoroughly mixed in the chamber. a

It is desirable to have means for locking the valves 22 open, after they have. been actuated by the pressure in the containers, so that after the containers haveonce been brought to a predetermined temperature these valves will open and stay open to permit the entire contents to be discharged over into the mixing chamber. In order to I provided a spring latch 39 which will enter the notch 40 in the hub of the lever arm 41 and retain the valve in open position after having been 0 ened until again released to again repeat t e operation. The weight 23 on the valve maybe adjusted to permit the .valve to ope-rate by a predetermined pressure.

I have shown and described 'one form of I relief valve but any other suitable form of ing a plurality of valve may be employed. for releasing the contents of the containersafter having been heated tothe desired t-e erature.

Having thus describe one illustrative embodiment of my invention and the best mode known to me of carrying out my method I desire it to'be understood that although specific terms are employed they are used 111 a generic and descriptive sense and not for the purpose of limitation, the scope of the invention being defined and limited by the appended claims.

I claim:

apparatus comprischemical containers, 2. mlxing chamber with which all of said con- 1. A ehemical mixing tainers are connected, means for heating cham each of said containers for the purpose of A 2. A chemical mixing apparatus compris' ing a plurality of chemical containers, a mixing chamber with which all of said containers are connected, means for heating each of said containersfor the purpose of distilling off its contents, and pressure operated valves mounted on the to s of said containers and controlling the How from the containers into the mixing chamber.

3. A chemical mixing apparatus comprising a plurality of chemical containers, a mixing chamber with which all of said containers are connected, means for heatin each of said containers for the purpose 0% distilling off its contents, automatic valves for controlling the' flow from the containers into said mixing chamber, and means for automatically locking said valves in open position. v

4. A chemical mixing apparatus comprising a plurality of chemical containers, a mixing chamber with which all of said containers are connected, means for heating each of said containers for the purposeof distilling'off its contents, automatic valves.

for controlling the flow from the containers into said mixing chamber, and a condensing reservoir connected with the mixer to receive gases discharged from said mixer.

5. A chemical mixing apparatus comprising a plurality of chemical containers, a mixing chamber with which all of said containers are connected, means for heatin each of said containers for the purpose 0 distilling off its contents, automatic valves for controlling the flow from the containers into said mixing chamber, and means for a "tating the gases within said mixing In testimony whereof I aflix my signature. I

JOHN R. MILSON. 

